"""
list
tuple
set
dict
"""

# list1=[12,35,45,32]
# dict1={
#     "name":"李四",
#     "age":12,
#     "is_del":False,
#     "a":None
# }
# list2=list(dict1.items())
# print(list2)
list3=[12,35,45,32,12]
# 怎么转字典?  了解
dict3={}
dict3=dict3.fromkeys(list3) #value默认是None
# dict3=dict3.fromkeys(list3,list3.count(12))
list4=[[12,1],[35,2]]
dict2=dict(list4)
print(dict3)




